8+5n=-12-15n

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Solution for 8+5n=-12-15n equation: 



8+5n=-12-15n

We move all terms to the left:

8+5n-(-12-15n)=0

We add all the numbers together, and all the variables

5n-(-15n-12)+8=0

We get rid of parentheses

5n+15n+12+8=0

We add all the numbers together, and all the variables

20n+20=0

We move all terms containing n to the left, all other terms to the right

20n=-20

n=-20/20

n=-1

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